From b11748e693166679acc13c8a4328a71efe1d4a89 Mon Sep 17 00:00:00 2001 From: Emmanuel Gil Peyrot Date: Sun, 1 Aug 2021 09:38:20 +0200 Subject: powerpc: wii.dts: Reduce the size of the control area This is wrong, but needed in order to avoid overlapping ranges with the OTP area added in the next commit. A refactor of this part of the device tree is needed: according to Wiibrew[1], this area starts at 0x0d800000 and spans 0x400 bytes (that is, 0x100 32-bit registers), encompassing PIC and GPIO registers, amongst the ones already exposed in this device tree, which should become children of the control@d800000 node. [1] https://wiibrew.org/wiki/Hardware/Hollywood_Registers Signed-off-by: Emmanuel Gil Peyrot Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210801073822.12452-4-linkmauve@linkmauve.fr --- arch/powerpc/boot/dts/wii.dts | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/boot/dts/wii.dts') diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts index aaa381da1906..c5fb54f8cc02 100644 --- a/arch/powerpc/boot/dts/wii.dts +++ b/arch/powerpc/boot/dts/wii.dts @@ -216,7 +216,13 @@ control@d800100 { compatible = "nintendo,hollywood-control"; - reg = <0x0d800100 0x300>; + /* + * Both the address and length are wrong, according to + * Wiibrew this should be <0x0d800000 0x400>, but it + * requires refactoring the PIC1 and GPIO nodes before + * changing that. + */ + reg = <0x0d800100 0xa0>; }; disk@d806000 { -- cgit v1.2.3-59-g8ed1b